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v3.22.1

Summary of Significant Accounting Policies - Financial Instruments Measured at Fair Value (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Jul. 15, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Assets: |  |  |  |
Digital assets | $ 32,581 | $ 0 |  |
Liabilities: |  |  |  |
Warrant liability | 3,605 | 1,614 | $ 2,486 | $ 0
Fair Value, Recurring |  |  |  |
Assets: |  |  |  |
Digital assets | 32,581 |  |  |
Total | 32,581 |  |  |
Liabilities: |  |  |  |
Warrant liability | 3,605 | 1,614 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 3,605 | 1,614 |  |
Level 1 | Fair Value, Recurring |  |  |  |
Assets: |  |  |  |
Digital assets | 32,581 |  |  |
Total | 32,581 |  |  |
Liabilities: |  |  |  |
Warrant liability | 0 | 0 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 0 | 0 |  |
Level 2 | Fair Value, Recurring |  |  |  |
Assets: |  |  |  |
Digital assets | 0 |  |  |
Total | 0 |  |  |
Liabilities: |  |  |  |
Warrant liability | 3,605 | 1,614 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 3,605 | 1,614 |  |
Level 3 | Fair Value, Recurring |  |  |  |
Assets: |  |  |  |
Digital assets | 0 |  |  |
Total | 0 |  |  |
Liabilities: |  |  |  |
Warrant liability | 0 | 0 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | $ 0 | $ 0 |  |

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